/*
 *
 * System2 Simulation Framework
 * Copyright (C) 2011 - 2012 Jacob Dawid
 * jacob.dawid@googlemail.com
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef SIMULATOR_H
#define SIMULATOR_H

#include <QThread>
#include <QQueue>

#include "semaphorescopelocker.h"
#include "simulation.h"
#include "server.h"
#include "client.h"

namespace System2 {
    /**
      * \class Simulator
      * \author Jacob Dawid <jacob.dawid@googlemail.com>
      * \date 12.01.2012
      */
    class Simulator : public QThread {
        Q_OBJECT
    public:
        Simulator();
        ~Simulator();

        void process(Simulation *simulation);


        bool hasBeenHalted();

        /**
          * Stops the simulator as soon as all simulation
          * have been processed. This method is blocking.
          */
        void halt();

    protected:
        bool simulationsRemaining();
        Simulation *nextSimulation();

        void run();
        void workOnJobs();

        bool jobsRemaining();

    private:
        QSemaphore *m_haltedSemaphore;
        bool m_halted;
        QSemaphore *m_simulationQueueSemaphore;
        QQueue<Simulation*> m_simulationQueue;
        Server *m_server;
        Client *m_client;
        QList<Atom*> m_remainingJobs;
        QList<Atom*> m_depositedJobs;
        int m_jobIdIterator;
    };
}

#endif // SIMULATOR_H
